newosinadjango/osinaweb/static/js/customer_dashboard/payment/payment.js

const paymentContent = document.getElementById('paymentContent');
const paymentLoader = document.getElementById('paymentLoader');
const payment_id = document.getElementById('paymentId').textContent;

function initiatePaymentCheckout(payment_id) {
    const csrftoken = getCookie('csrftoken');
    console.log(payment_id);

    console.log('CSRF Token:', csrftoken);

    paymentLoader.classList.remove('hidden');

    fetch('/payment/initiate-payment-checkout/', {
        method: 'POST',
        headers: {
            'Content-Type': 'application/json',
            'X-CSRFToken': csrftoken,
        },
        body: JSON.stringify({ payment_id: payment_id }),
    })
        .then(response => {
            if (!response.ok) {
                throw new Error('Network response was not ok');
            }
            return response.json();
        })
        .then(data => {
            console.log("Session ID: " + data.session_id);
            // Update Checkout session with the fetched session ID and show the embedded page
            Checkout.configure({
                session: {
                    id: data.session_id,
                }
            });
            $('#paymentContent').empty();
            Checkout.showEmbeddedPage('#paymentContent');
            sessionStorage.clear();

            paymentLoader.classList.add('hidden'); 
        })
        .catch(error => {
            console.error('There was a problem with the fetch operation:', error);

            paymentLoader.classList.add('hidden'); 
        });
}

function getCookie(name) {
    let cookieValue = null;
    if (document.cookie && document.cookie !== '') {
        const cookies = document.cookie.split(';');
        for (let i = 0; i < cookies.length; i++) {
            const cookie = cookies[i].trim();
            if (cookie.substring(0, name.length + 1) === (name + '=')) {
                cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
                break;
            }
        }
    }
    return cookieValue;
}

initiatePaymentCheckout(payment_id);